CN103156711A - Artificial prosthesis - Google Patents
Artificial prosthesis Download PDFInfo
- Publication number
- CN103156711A CN103156711A CN 201110417707 CN201110417707A CN103156711A CN 103156711 A CN103156711 A CN 103156711A CN 201110417707 CN201110417707 CN 201110417707 CN 201110417707 A CN201110417707 A CN 201110417707A CN 103156711 A CN103156711 A CN 103156711A
- Authority
- CN
- China
- Prior art keywords
- calcaneus
- prosthesis
- joint face
- prosthese
- astragalus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses an artificial prosthesis which is used for subtalar joint replacement. The artificial prosthesis is characterized by comprising a crurotarsal joint face prosthesis (1) and a calcaneus joint face prosthesis (2), wherein the crurotarsal joint face prosthesis (1) and the calcaneus joint face prosthesis (2) are matched in shape and are movably contacted. A fixed crest (3) which can be inserted into an ankle bone to fix the crurotarsal joint face prosthesis in the ankle bone is arranged on a face, contacted with the ankle bone, of the crurotarsal joint face prosthesis (1), and a fixed crest (3) which can be inserted into a heel bone to fix the calcaneus joint face prosthesis in the heel bone is arranged on a face, contacted with the heel bone, of the calcaneus joint face prosthesis (2). According to the artificial prosthesis, the restricted area of subtalar joint fracture treatment is broken through, the artificial prosthesis is innovatively applied to the recovery of subtalar joints, has the advantages of being fast in wound healing without restricting patient movement, can greatly improve postoperative life quality, and is simple in structure, and convenient to manufacture.
Description
Technical field
The invention belongs to the medical tissue field of engineering technology, be specifically related to a kind of artificial prosthesis for the subtalar joint displacement.
Background technology
Organizational project is the emerging interdisciplinary field that grows up in the last thirty years, and its final purpose is to produce for recovering, keep or promote the product of human body damaged organ or organizational structure and function, such as organization engineering skin, bone, cartilage, tendon etc.
Subtalar joint claims again talocalcaneal joint, is a complicated joint of foot, all plays an important role when human body is stood and walk, and particularly the effect of the biomechanics of centering metapedes is particularly important.But because it is less with respect to the foot movement amplitude, do not cause enough understanding for a long time.Along with the treatment of the commonly encountered diseases such as flat foot, posterior tibial muscle tendon functional defect, rheumatoid arthritis, degenerative osteoarthritis, foot deformity, traumatic and post-traumatic arthritis by the conservative operative treatment that turns to, wherein using maximum is fusion, obtained corresponding clinical efficacy, simple fusion of subtalar joint is used to treat a lot of adult's metapedes diseases, comprises traumatic talocalcaneal articulation osteoarthritis, complexity fracture of calcaneus, posterior tibial muscle tendon functional defect, infectious talocalcaneal articulation inflammation.But the long term follow-up discovery, the complication such as even more serious foot joint wound, degenerative arthritis will appear in the more patient of postoperative.
Summary of the invention
Can affect the problem of human normal action after the objective of the invention is to heal for the fracture that existing fusion therapy for treating subtalar joint fracture exists, design a kind of fractures that can guarantee to accelerate, do not affect again the artificial prosthesis for replacing subtalar joint of human normal action.
The technical solution adopted in the present invention is:
A kind of artificial prosthesis, be used for the subtalar joint displacement, it is characterized in that: comprised for two block-shaped match and mutually astragalus articular surface prosthese 1 and the calcaneus joint face prosthese 2 of movable contact form, thereby be provided with a fixedly ridge 3 in astragalus articular surface prosthese being fixed on astragalus in inserting astragalus on astragalus articular surface prosthese 1 and the contacted one side of astragalus, thereby be provided with a fixedly ridge 3 in calcaneus joint face prosthese 2 being fixed on calcaneus in inserting calcaneus on calcaneus joint face prosthese 2 and the contacted one side of calcaneus.
Described astragalus articular surface prosthese 1, calcaneus joint face prosthese 2 and fixedly ridge 3 and 4 be titanium alloy structure spare or Nitinol structural member, respectively be provided with on described fixedly ridge 3 and 4 and two or morely radially swell 5.
Described fixedly ridge 3 and 4 axis all parallel with the axis of movement of subtalar joint itself.
Compared with prior art, the invention has the advantages that:
The present invention has broken through the forbidden zone of subtalar joint fractures, audaciously artificial prosthesis is applied in the rehabilitation of subtalar joint, has a wound healing fast, and patient's unrestricted advantage of taking action can improve postoperative life quality greatly, and simple in structure, easily manufactured.
Description of drawings:
Fig. 1 is structural representation of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing, the present invention is further explained explanation.
a kind of artificial prosthesis for replacing subtalar joint as shown in Figure 1, comprised for two block-shaped match and mutually titanium alloy astragalus articular surface prosthese 1 and the titanium alloy calcaneus joint face prosthese 2 of movable contact form, thereby be provided with a fixedly ridge 3 in astragalus articular surface prosthese 1 being fixed on astragalus in inserting astragalus on astragalus articular surface prosthese 1 and the contacted one side of astragalus, thereby be provided with a fixedly ridge 3 in calcaneus joint face prosthese 2 being fixed on calcaneus in inserting calcaneus on calcaneus joint face prosthese 2 and the contacted one side of calcaneus, each fixedly respectively is provided with the radially protuberance 5 more than two or two on ridge 3 or 4, fixedly ridge 3, 4 axis all parallels with the axis of movement of subtalar joint itself, namely consistent with the kinematic axis of subtalar joint itself, it by last upper one interior oblique after one outside next, be the line between on lateral surface boundary and neck of talus after calcaneus, medial surface has a common boundary, and intersect vertically with veins of tarsal sinus, this axle is at sagittal plane 42 degree angles upwards, be offset to the inside 16 on cross section and spend the angle.
Latter two prosthese 1,2 of performing the operation will be firmly secured on the astragalus articular surface corresponding with calcaneus, can produce between two prostheses fine motion with after adapting to, the needs of mesopodium biomechanics.Thereby also keeping parallelism each other.
Use procedure of the present invention is:
Firmly tie up pueumatic tourniquet prior to patient's Ipsilateral thigh root during operation, adopt Continuous Epidural Block associating lumbar anesthesia, the patient gets lateral position after anaesthetizing onset, and Ipsilateral makes progress, and iodine tincture, ethanol is zone, routine disinfection visual area skin successively.Drive blood rear gasbag tourniquet and be forced into 45KPa.Get rear outside operative approach, cut successively skin, subcutaneous, expose subtalar joint fully, with the articular surface part of ossiculum cutter correction astragalus, calcaneus, and cut the part sclerotin, its surface and the surface of astragalus articular surface prosthese 1 of the present invention and calcaneus joint face prosthese 2 are complementary.Then with electric drill respectively at the articular surface central slot of astragalus, calcaneus, the groove that makes out is parallel with the kinematic axis of subtalar joint, and with the fixedly ridge 3 of the two non-articular surface sides of prosthetic component, 4 corresponding, the flood of holing should guarantee that fixedly ridge 3,4 can more closely insert wherein under external force.Prosthese 1,2 is closed up, after non-articular surface side is smeared a little bone cement, the whole implantation in the gap for preparing.Bone cement is implanted too much unsuitable, and a phase obtains initial stability preferably.After bone cement solidified, movable metapedes was observed the active situation of subtalar joint, and fine motion is rear to adapt to, the needs mesopodium biomechanics get final product if can produce between prosthese two parts.Povidone iodine irrigates, and layer-by-layer suture is subcutaneous, skin, the aseptic dressing pressure dressing.
Claims (3)
1. artificial prosthesis, be used for the subtalar joint displacement, it is characterized in that: comprised for two block-shaped matching and mutually astragalus articular surface prosthese (1) and calcaneus joint face prosthese (2) composition of movable contact, at astragalus articular surface prosthese (1) thus with the contacted one side of astragalus on be provided with a fixedly ridge (3) in astragalus articular surface prosthese being fixed on astragalus in can inserting astragalus, at calcaneus joint face prosthese (2) thus with the contacted one side of calcaneus on be provided with a fixedly ridge (3) in calcaneus joint face prosthese (2) being fixed on calcaneus in can inserting calcaneus.
2. artificial prosthesis according to claim 1, it is characterized in that: described astragalus articular surface prosthese (1), calcaneus joint face prosthese (2) and fixing ridge (3,4) be titanium alloy structure spare or Nitinol structural member, respectively be provided with two or more radially protuberances (5) on described fixedly ridge (3,4).
3. artificial prosthesis according to claim 1, it is characterized in that: the axis of described fixedly ridge (3,4) all parallels with the axis of movement of subtalar joint itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110417707 CN103156711A (en) | 2011-12-14 | 2011-12-14 | Artificial prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110417707 CN103156711A (en) | 2011-12-14 | 2011-12-14 | Artificial prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103156711A true CN103156711A (en) | 2013-06-19 |
Family
ID=48580584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110417707 Withdrawn CN103156711A (en) | 2011-12-14 | 2011-12-14 | Artificial prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103156711A (en) |
-
2011
- 2011-12-14 CN CN 201110417707 patent/CN103156711A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130619 |